JP2013213375A - Opening and closing device of emergency door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing device, in a three points tightening emergency door with an auxiliary latch, which can smoothly execute in sinking a door bolt and releasing an upper/lower auxiliary latch, can reliably relock the door after opening the door, and easily monitor a locked/unlocked state.SOLUTION: A motor locking/unlocking type tightening electric lock is used in a case lock 20 attached to the vicinity of a door end of a wing 10. A dead bolt 21 is appeared by an electrical control in a normal time, and also is mechanically sunk by a push-down operation of a push handle 30 regardless of an electric conduction state in a case of an emergency. Upper/lower auxiliary latches 43 and 44 are interlocked to the push-down operation of the push handle 30 so as to be mechanically unlocked. On the outdoor side of the wing 10, a cylinder lock mechanically unlocking the electric lock and a lever handle, which becomes operational when the cylinder lock is unlocked, are attached so as to release the auxiliary latches 43 and 44 by a lever handle operation.

Description

  The present invention relates to an opening / closing device for smoothly opening an emergency door installed in various facilities in an emergency.

  In public facilities and commercial facilities used by a large number of people, it is necessary to secure an evacuation route that allows people to quickly escape to the outdoors in the event of a fire or other emergency. As an emergency door opening and closing device installed on such an evacuation route, for example, those disclosed in Patent Documents 1 to 3 are known.

  The basic structure of such an opening / closing device is that when a horizontally long push handle (panic handle) attached to the indoor side of the wing (door) is pushed down, an arm connected to the handle is attached to the vicinity of the wing door. The mechanism part of the case lock (box lock) is moved in the unlocking direction, and the door bolt (dead bolt or latch bolt) protruding from the lock surface is immersed, so that the wing restraint is released and the door can be opened. It will be. A so-called three-point tightening type opening and closing device constructed by providing auxiliary latches at the tips of rods extending in the vertical direction from the case lock in combination with locking by door bolts, and engaging these auxiliary latches with the upper and lower door frames. Are also often used. Such an opening / closing device has an advantage that the wing can be pushed open to the outdoor side by the pressure of the human wave that is pushed toward the emergency exit, and people can be evacuated smoothly.

  This type of emergency door is installed in a double door system that allows a large opening, for example, in theaters, movie theaters, large commercial facilities, large hospitals, and other facilities that are used by an unspecified number of people. Often. In addition, in business facilities used by limited people and evacuation stairs of high-rise buildings, etc., they are often installed so as to be separated from each other. In any case, these opening and closing devices engage the door bolt that protrudes from the lock surface of the case lock when the door is double-opened and the strike (seat) provided on the door frame when the door is open. By doing so, the door is closed.

JP 60-253675 A Japanese Utility Model Publication No. 63-152880 JP-A-8-86133

  This type of emergency door must be kept open from the indoor side (exit side) so that anyone can easily open it without requiring a special unlocking operation to ensure safety in an emergency. Don't be. However, on the other hand, the outdoor side (entrance side) must be locked under normal circumstances for security and other reasons so that it cannot be opened without permission. As a locking means for that purpose, an opening and closing device is often used in which a cylinder lock is provided on the outdoor side of the case lock, and when entering the room, a key is inserted into the cylinder lock and unlocked.

  In such an opening / closing device, the cylinder lock is turned with the key from the outdoor side, and the case lock is unlocked by operating the lever handle, knob, etc., and the push handle is pushed down from the indoor side to unlock the case lock. The mechanism is required to be rationally linked with a simple component configuration. In particular, in a three-point tightening opening and closing device having an auxiliary latch, the operation position and the operation direction differ from each other in that the door bolt is immersed and the upper and lower auxiliary latches are released by one unlocking operation (single action). Connecting the three types of operations smoothly and surely is an important consideration in the mechanism design.

  Furthermore, when the door is opened from the indoor side and the user leaves the room, or when the cylinder lock is unlocked from the outdoor side and enters the room, the opened wing is left in an unlocked state. This will cause trouble for crime prevention. Therefore, when the opened wing is closed again, a mechanism for returning to the locked state automatically or by an appropriate manual operation is also required. Such a mechanism for re-locking must also be configured integrally with the above-described mechanism for unlocking so as not to complicate the component structure of the entire switchgear.

  It is also provided as a public entrance for facilities with relatively large numbers of people coming and going (eg large-scale office buildings, complex commercial facilities, large sports facilities, theaters, general hospitals, etc.), holiday night entrances, and goods delivery entrances. In an emergency door, various users come and go irregularly for 24 hours. Therefore, from the viewpoint of crime prevention, it is necessary to always properly check the locking / unlocking state of the emergency door (in particular, the re-locking state of the wing once opened). However, in such a facility, the number of emergency doors is generally large, and they are installed at positions apart from each other, so that the human burden for monitoring and security tends to be very large.

  The present invention has been made in view of the circumstances as described above, and the main problem thereof is a three-point tightening opening / closing device having an auxiliary latch, in both a normal state and an emergency state. It is an object of the present invention to provide a rational locking / unlocking mechanism that can properly hold the door bolt and smoothly operate the immersion of the door bolt and the release of the upper and lower auxiliary latches by an easy operation in an emergency.

  In order to achieve the above-mentioned object, an emergency door opening and closing device according to the present invention includes a wing that opens toward an outdoor side, and handle seats provided on an indoor suspension side and an indoor door end side of the wing, respectively. A push handle attached so as to be swingable in a push-down direction via a door, a case lock provided on the door tip side of the wing to allow a door bolt to protrude from the lock surface, and an upper and lower side from the handle seat on the indoor door tip side A pair of upper and lower auxiliary latches respectively provided at the ends of the rods extended to the rod, and if the door bolt is a single-open type emergency door, the door frame is a vertical frame or a double-open type emergency door. In this case, the wing is held in a closed state by engaging with a strike provided on the door end side of the opponent's wing and by engaging the upper and lower auxiliary latches with the upper frame and the lower frame of the door frame, respectively. On the other hand, when the push handle is pushed down, the door bolt is immersed in the case lock and disengaged from the strike, and the rods are drawn toward the handle seat side on the indoor door-end side, and the door In the emergency door opening and closing device in which the auxiliary latch is disengaged from the frame and the wing can be opened, the case lock is opened and closed when the energization of the door bolt is electrically controlled. When the wing is closed again for a predetermined time, the door bolt protrudes and returns to the locked state, and the case lock is engaged with the unlocking hub from the indoor side, and the push handle is pushed down. When the unlocking hub rotates in conjunction, the door bolt is mechanically immersed regardless of the energized state, and the case lock is It is tablets, to adopt the basic configuration of the.

  That is, according to the present invention, in a three-point fastening type opening / closing device that locks and closes a wing by an upper and lower auxiliary latch together with a case-side case lock, a so-called motor-locking / unlocking type main-locking electric lock is attached to the case lock. Adopted. According to the present invention, during normal times (when energized), the lock / unlock state can be easily monitored, recorded, or inspected using a monitor or the like, taking advantage of the electric lock. Therefore, for example, even in a large-scale facility where a large number of unspecified people come and go irregularly, it is possible to reduce the human burden related to security and maintenance management. Further, the motor-locking / unlocking type electric lock can be unlocked by a mechanical operation in the event of a power failure, thus ensuring safety in an emergency.

  Furthermore, the emergency door opening and closing device according to the present invention, in addition to the above-described configuration, mechanically connects the upper and lower rods connected to the auxiliary latch by the push-down operation of the push handle regardless of the energized state. An additional configuration is adopted in which the auxiliary latch is released by being drawn toward the handle seat side on the indoor door-end side.

  According to the present invention, three unlocking operations with different operating positions and operating directions, that is, the door bolt is immersed and the upper and lower auxiliary latches are released by one unlocking operation (single action) that pushes down the push handle from the indoor side. Can be linked smoothly and reliably. This makes it possible to evacuate smoothly in an emergency.

  Further, the emergency door opening and closing device of the present invention has a cylinder lock attached to the outdoor side of the wing in addition to the above-described configuration, and the cylinder lock engages with the case lock from the outdoor side. An additional configuration is adopted in which the door bolt is mechanically immersed regardless of the energized state and the case lock is unlocked by this key operation.

  According to the present invention, it is possible to lock the outdoor side during normal times to ensure crime prevention, and if necessary, unlock the case lock and enter the indoor side even during a power failure. Therefore, safety and daily maintenance management efficiency are further improved.

  Furthermore, the emergency door opening and closing device of the present invention is provided with a lever handle or a knob or other handle member equivalent thereto on the outdoor side of the wing, in addition to the above-described configuration, and the handle member is inoperable when locked. While being restrained, the restraint of the handle member is released in conjunction with the key operation of the cylinder lock, and the upper and lower rods connected to the auxiliary latch are mechanically operated by the operation of the handle member regardless of the energized state. Thus, an additional configuration is adopted in which the auxiliary latch is released by being pulled toward the handle seat side on the indoor door tip side.

  In the present invention, when unlocking from the outdoor side, it is considered that it is somewhat impossible to release the upper and lower auxiliary latches together by only operating the key of the cylinder lock. According to the design philosophy that a handle member for releasing the auxiliary latch is attached to the outdoor side, the operation of the handle member is normally restricted, and the operation of the handle member is made possible by the key operation of the cylinder lock. , Unlocking and opening operations from both the indoor and outdoor sides can be performed lightly with a small force.

  Furthermore, the emergency door opening and closing device according to the present invention is a specific embodiment for realizing the above-described design concept. The handle seat on the indoor door-end side is connected to the rods of the upper and lower auxiliary latches respectively, and the push handle A pair of upper and lower retractors that move up and down in conjunction with the push-down operation, a retractor cam that engages between the upper and lower retractors and rotates in conjunction with the raising and lowering of the retractor, and the rotation of the retractor cam is transmitted to the unlocking hub. An indoor unlocking mechanism including a gear and a switching plate that moves up and down in conjunction with rotation of the unlocking hub is incorporated, while a handle seat on the indoor door end side is rotated with a base portion of the handle member. A lever hub that is movably held, a lever stopper that restrains rotation of the lever hub, a lever stopper lifting plate that lifts and lowers the lever stopper, and the lever hub An outdoor side unlocking mechanism including an outdoor side retractor that moves up and down by operation is incorporated, and the indoor side switching plate and the outdoor side lever stopper lifting plate are connected via a switching bar that penetrates the wing. When the unlocking hub is rotated by the key operation of the cylinder lock, the switching plate, the lever stopper elevating plate and the lever stopper are lowered in conjunction with each other, the restraint of the lever hub is released and the lever hub is released. The handle member can be operated, and the outdoor side retractor is raised by the operation of the handle member, and a lever unlocking bar attached to the outdoor side retractor and extending to the indoor side is used to unlock the indoor side. A structure is adopted in which the auxiliary latch is released by moving the mechanism to the unlocking side.

  By adopting such a configuration, unlocking and opening operations from both the indoor side and the outdoor side can be reasonably realized with a relatively small number of parts.

  The “emergency door” in the present invention is not particularly stipulated with respect to the type and mode of the door, and is a door that is assumed to be used mainly for evacuation in a daily usage mode. Comprehensive general. In the present invention, the door is set to be opened from the “indoor side” to the “outdoor side”, and the positional relationship of each part / member is set to “indoor side”, “outdoor side”, “door”. The description will be made on the basis of “front side (lock surface side, front side)” and “hanging side (rear side)”, but these criteria are for convenience of detailed description, and are “indoor” and “outdoor” The form, scale, usage mode, etc. of each space are not particularly limited.

  The emergency door opening and closing device of the present invention configured as described above is a so-called three-point closing type opening and closing device, and employs a motor-locking / unlocking type main locking electric lock as a case lock on the door end side. In normal operation (when energized), it is possible to monitor, record, and inspect the locked / unlocked state easily using a monitor, etc. for security and maintenance management. Such a human burden can be reduced. On the other hand, in the event of an emergency, the case lock can be mechanically unlocked by a push-down operation of the push handle regardless of the energized state, so that emergency safety is also ensured.

  Furthermore, if the upper and lower auxiliary latches are also released in conjunction with the push-down operation of the push handle, it is possible to evacuate more quickly in an emergency.

It is the external view which looked at the opening / closing apparatus of the emergency door which concerns on embodiment of this invention from the indoor side. It is the external view which looked at the said switchgear from the outdoor side. It is the external view which looked at the said switchgear from the door end side (locking surface side). It is a top view of the switchgear. It is the principal part longitudinal cross-section schematic diagram which looked at the internal mechanism of the handle seat by the side of an indoor door in the closed door state from the door tip. It is the principal part front schematic diagram which looked at the internal mechanism (handle side substantially half part) of the handle seat by the side of an indoor door in the closed door state from the wing side. It is the principal part front schematic diagram which looked at the internal mechanism (wing side substantially half part) of the handle seat by the side of an indoor door in the closed door state from the wing side. It is the principal part longitudinal cross-section schematic diagram which looked at the operating state of the internal mechanism of the handle seat by the side of an indoor door in the case of opening a door from the indoor side. It is the principal part front schematic view which looked at the operating state of the internal mechanism (handle side substantially half part) of the handle seat by the side of an indoor door in the case of opening a door from the indoor side. It is the principal part front schematic view which looked at the operating state of the internal mechanism (wing side substantially half part) of the handle seat by the side of an indoor door in the case of opening a door from the indoor side. It is the principal part longitudinal cross-section schematic diagram which looked at the internal mechanism of the handle seat by the side of the outdoor door-end in a closed door state from the door-end side. It is the principal part front schematic diagram which looked at the internal mechanism of the handle seat by the side of an outdoor door in the closed door state from the wing side. It is the principal part longitudinal cross-section schematic diagram which looked at the operating state of the internal mechanism of the handle seat by the side of an indoor door in the case of unlocking from the outdoor side. It is the principal part front schematic diagram which looked at the operating state of the internal mechanism (wing side substantially half part) of the handle seat by the side of an indoor door in the case of unlocking from the outdoor side. It is the principal part longitudinal cross-section schematic diagram which looked at the operating state of the internal mechanism of the handle seat of the outdoor door-end side when opening from the indoor side and unlocking from the outdoor side. It is the principal part front schematic diagram which looked at the operating state of the internal mechanism of the handle seat of the outdoor door-end side when opening from the indoor side and unlocking from the outdoor side. It is the principal part front schematic diagram which looked at the operating state of the internal mechanism of the handle seat by the side of an outdoor door tip when opening from the outdoor side. It is the principal part longitudinal cross-section schematic which looked at the operating state of the internal mechanism of the handle seat (substantially upper half) of the outdoor door tip side, and the handle seat of the indoor door tip side when opening from the outdoor side. . It is the principal part front schematic view which looked at the operating state of the internal mechanism (handle side substantially half part) of the handle seat by the side of an indoor door in the case of opening a door from the outdoor side.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Overall configuration of emergency doors]
1 to 4 show an overall configuration of an emergency door according to an embodiment of the present invention. FIG. 1 shows an external view of the switchgear provided on the emergency door as viewed from the indoor side (exit side), and FIG. 2 shows an external view of the switchgear as viewed from the outdoor side (entrance side). FIG. 3 shows the appearance of the opening / closing device as viewed from the door end side (lock surface side), and FIG. 4 shows the appearance of the opening / closing device as seen from above by cutting a wing sideways. Yes.

(wing)
The illustrated emergency door is a double swing type emergency door having two wings (door bodies). The switchgear according to the present invention is provided in the right wing 10 as viewed from the indoor side. Hereinafter, the wing on the right side is simply referred to as “wing” unless otherwise specified. (Only a part of the left wing 11 as viewed from the indoor side is shown in FIGS. 1 and 4.)
An appropriate door hinge member or the like (not shown) that rotatably holds the wing 10 is attached to a suspension base side (the right side in FIGS. 1 and 4) of the right wing 10. A door closer (not shown) for automatically closing the opened wing 10 is also provided. However, in the present invention, configurations of the door hinge member, the door closer, and the like are not particularly limited.

(Case lock)
A box-like case lock 20 that fits in the thickness of the wing 10 is dug into the door end side (the left side in FIGS. 1 and 4) of the wing 10. The case lock 20 is a final lock that allows a dead bolt 21 as a door bolt to protrude from the lock surface. Under normal conditions, the tip of the dead bolt 21 protruding from the lock surface of the case lock 20 engages with a strike 22 attached to the door tip surface of the wing 11 of the other party (left side), so that the wing 10 is closed. Hold. In the case of a single-open emergency door with only one wing 10, the strike 22 is provided in a vertical frame (not shown) of the door frame.

  The case lock 20 is also an electric lock in which the appearance of the dead bolt 21 is electrically controlled. During normal operation (when energized), for example, an electric signal input through a switch panel, human sensor, ID authentication device, etc. drives a motor (not shown) in the case lock 20 to cause the dead bolt 21 to appear and disappear. It is configured as a so-called motor locking / unlocking electric lock. In a general installation mode, after the case lock 20 is unlocked and the wing 10 is opened, when a predetermined time (about several tens of seconds) elapses after the wing 10 is closed again, the door bolt automatically protrudes. Control to return to the locked state.

  In large-scale facilities where an unspecified number of people enter and exit irregularly, it is desirable to be able to centrally monitor the locking / unlocking status of multiple emergency doors. In the case of the electric lock, it is possible to easily monitor, record, and inspect the locked / unlocked state and the state of entry / exit using a monitor or the like.

  However, if a power outage occurs due to a fire or earthquake, the evacuation will be hindered if the electric lock cannot be unlocked. Therefore, the case lock 20 is configured so that it can be manually unlocked independently of electrical control regardless of whether the power is on or a power failure. Specifically, an appropriate driven mechanism (not shown) for mechanically moving the dead bolt 21 in and out of the case lock 20 is incorporated. The operation shaft 23 (FIGS. 3 and 4) of the driven mechanism is disposed in the thickness direction of the case lock 20 and opens on both the indoor and outdoor sides of the case lock 20. An unlocking hub 24 that rotates by operating the push handle 30 or the like is engaged with the indoor side of the operation shaft 23, and a cylinder lock 25 is engaged with the indoor side of the operation shaft 23. In the opening / closing device of the present invention, an indoor side and outdoor side unlocking mechanism, which will be described later, is designed based on the position of the operation shaft 23.

(Indoor handle seat)
A push handle 30 is attached to the indoor side of the wing 10. The push handle 30 includes a handle bar 31 extending along the opening direction of the wing 10 and handle arms 32 provided at both ends thereof. Both handle arms 32 are held via handle seats 33 and 34 attached to the indoor suspension side and the indoor door end side of the wing 10, respectively. Each handle seat 33, 34 is provided with a support shaft for holding the base end portion of the handle arm 32 in parallel with the wing 10, and the push handle 30 swings up and down via the support shaft. It is held freely.

(Auxiliary latch)
Rods 41 and 42 extend upward and downward from the handle seats 33 and 34 on the indoor door-end side, and auxiliary latches 43 and 44 are provided at the tips thereof. The upper and lower auxiliary latches 43 and 44 are configured such that the latch heads 47 and 48 protrude from the upper and lower auxiliary latch boxes 45 and 46 attached to the indoor surface of the wing 10 in a biased state, respectively.

  On the other hand, the upper frame 13 of the door frame is provided with an upper auxiliary latch receiving portion 14 made of a member having an L-shaped cross section, and the lower frame 15 of the door frame has a lower side formed by a recess formed in the lower frame 15. An auxiliary latch receiving portion 16 is provided. Under normal conditions, the upper and lower latch heads 47 and 48 are engaged with the auxiliary latch receiving portions 14 and 16, respectively, and the wing 10 is held in the closed state.

  When the opened wing 10 is closed, the latch heads 47 and 48 are brought into contact with the auxiliary latch receiving portions 14 and 16 and pushed into the auxiliary latch boxes 45 and 46, and then protrude again to be auxiliary latch receiving portion 14. , 16 are engaged.

  As for the auxiliary latch, for example, the tips of the rods 41 and 42 are directly engaged with appropriate rod receiving portions (not shown) provided on the upper frame 13 and the lower frame 15 to bring the wing 10 into a closed state. It may be replaced with a configuration that holds. Since the present invention does not have a detailed engagement structure between the auxiliary latch and the door frame, the “auxiliary latch” in the present invention includes the simple configuration as described above.

(Unlocking and opening from the indoor side)
The above-described dead bolt 21 of the case lock 20 and the upper and lower auxiliary latches 43 and 44 constitute a three-point tightening type opening / closing device. An indoor side unlocking mechanism that unlocks the case lock 20 and the auxiliary latches 43 and 44 in conjunction with the push-down operation of the push handle 30 is incorporated in the handle seat 33 on the indoor door-end side. When unlocking and opening the door from the indoor side, when the push handle 30 is first pushed down, the unlocking hub 24 is rotated via the unlocking mechanism on the indoor side, the driven mechanism in the case lock 20 is moved, and the dead bolt 21 is moved. Is immersed in the case lock 20 and disengaged from the strike 22. At the same time, the upper and lower rods 41, 42 are pulled toward the handle seat 33, the auxiliary latches 43, 44 are disengaged from the door frame, and the wing 10 can be opened.

(Outdoor handle seat)
On the other hand, as shown in FIGS. 2 and 3, a cylinder lock 25 for unlocking the case lock 20 from the outdoor side is attached to the outdoor side of the wing 10 so as to coincide with the operation shaft 23 of the case lock 20. It is done. Further, a lever handle 50 for opening the wing 10 from the outdoor side, or a knob corresponding to the lever handle 50 or an appropriate handle member is attached via a handle seat 51 on the outdoor door-end side.

  In the illustrated handle seat 51, a support shaft for holding the base end portion of the lever handle 50 is provided in a direction perpendicular to the wing 10 (thickness direction of the wing 10). When the door is closed, the lever handle 50 is held in a sideways posture, swingable in the push-down direction, and biased in the push-up direction. Further, between the outdoor door-side handle seat 51 and the indoor door-side handle seat 33, two movable members (switching bar 52, lever unlocking bar 53) are provided so as to penetrate the wing 10. Is disposed. Due to these positional relationships, the handle door 51 on the outdoor door-end side is attached to a position slightly lower than the handle seat 33 on the indoor door-end side.

(Unlocking / opening operation from outside)
When unlocking / opening the door from the outdoor side, the key 26 is first inserted into the cylinder lock 25 and rotated to the unlocking side. Then, the operation shaft 23 of the case lock 20 rotates, the dead bolt 21 is immersed, and the engagement with the strike 22 is released. However, the upper and lower auxiliary latches 43 and 44 are not released yet only by the key operation of the cylinder lock 25. To release the upper and lower auxiliary latches 43 and 44, an operation of the lever handle 50 is added.

  The lever handle 50 is constrained so as not to rotate during locking, but by operating the key of the cylinder lock 25, the door handle side is moved from the indoor unlocking mechanism incorporated in the handle seat 33 on the indoor door tip side. The restraint is released via the outdoor side unlocking mechanism incorporated in the handle seat 51, and the push-down operation becomes possible. When the lever handle 50 is pushed down, the operation is transmitted again to the indoor side, the upper and lower rods 41, 42 are drawn toward the handle seat 33 side on the indoor suspension side, and the auxiliary latches 43, 44 are released. The The two movable members (the switching bar 52 and the lever unlocking bar 53) link these unlocking operations indoors and outdoors.

(Linking the indoor and outdoor unlocking mechanisms)
That is, the cylinder lock 25 in this opening / closing device is a mechanism provided for manually unlocking the case lock 20 that is normally electrically locked / unlocked from the outdoor side as necessary. However, it is somewhat impossible mechanically to release the upper and lower auxiliary latches 43 and 44 together by only the key operation of the cylinder lock 25. Accordingly, the opening / closing device of the present invention moves a part of the indoor unlocking mechanism incorporated in the handle seat 33 on the indoor door tip side by operating the key of the cylinder lock 25, and the operation is controlled by the handle on the outdoor door tip side. By connecting to the outdoor side unlocking mechanism incorporated in the seat 51, the restraint of the lever handle 50 is released, and by rotating the lever handle 50 there, it is again passed through the indoor side unlocking mechanism. Thus, the auxiliary latches 43 and 44 are released.

  Such a configuration is complicated at first glance, but unlocking and opening operations from both the indoor side and the outdoor side can be realized with light force and smoothness with a small force and with a relatively small number of parts. It has become. Hereinafter, details of the indoor side and outdoor side unlocking mechanisms will be described.

[Unlocking mechanism on the indoor side]
5-10 is a figure which shows the principal part of the unlocking mechanism by the side of the indoor provided in the inside of the handle seat 33 by the side of an indoor door in the switchgear shown in FIGS. 1-4. 5 to 7 show the closed state, and FIGS. 8 to 10 show the operating state when the unlocking / opening operation is performed from the indoor side.

(Handle seat)
The handle door 33 on the indoor door-end side includes a center case 61 whose front shape is a vertically long rounded rectangle, and an arm mounting base 62 that is attached so as to overlap the front center of the center case 61. The center case 61 is a substantially box-shaped member having an open rear side (wing 10 side). The upper part of the center case 61 is directly fixed to the wing 10 by a fixing screw 63, and the lower part is fastened to the mounting leg 54 by a fixing screw 64. The mounting leg 54 is a member that is also used for fixing the handle seat 51 on the outdoor door-end side, and includes a long nut portion 541 that penetrates the wing 10 and a male screw portion 542 formed at an end portion on the outdoor side. The male screw portion 542 is fastened to the handle seat 51 on the outdoor door-end side.

  The arm mounting base 62 has an arm mounting recess 621 at the substantially front center thereof. A proximal end portion of the handle arm 32 formed in a short cylindrical shape is attached to the inside of the arm mounting recess 621 via the arm shaft member 35. The arm shaft member 35 serves as a support shaft for holding the handle arm 32 in a swingable manner. Although illustration is omitted, the handle seat 34 on the indoor suspension base side also holds the base end portion of the handle arm 32 in a swingable manner by a similar structure, and a spring member (not shown) built in the handle seat 34 is provided. The handle arm 32 is biased in the push-up direction through the via.

  An arm protrusion 36 extending toward the wing 10 side is formed at the base end portion of the handle arm 32 on the indoor door-end side. The tip of the arm protrusion 36 protrudes from the opening on the back surface of the arm mounting base 62 into the center case 61 through a through hole 611 formed at the front center of the center case 61. When the push handle 30 is pushed down, the arm protrusion 36 is pushed upward. This operation is a starting point for moving the indoor unlocking mechanism to the unlocking side.

  The structure of the indoor side unlocking mechanism incorporated in the center case 61 is roughly divided into two along the thickness direction of the center case 61. A center case middle partition plate 65 (see FIGS. 5 and 7) is attached to a substantially intermediate position in the thickness direction of the center case 61. The center case partitioning plate 65 is a fixing member made of a thin plate having a width that fits substantially within the inner width of the center case 61, and is provided with screwing portions 612 provided in the vicinity of the four corners in the center case 61 (FIG. 6). (See FIG. 7) from the wing 10 side. For convenience of explanation, a mechanism incorporated in a substantially half part on the handle side of the center case partition plate 65 is shown in FIGS. 6 and 9, and a substantially half part on the wing 10 side of the center case partition plate 65 is shown. 7 and 10 show the configuration incorporated in the system.

  A center case cover plate 67 serving as a lid for the indoor side unlocking mechanism is attached to the center case 61 on the most wing 10 side. FIG. 7 also shows a state where the center case cover plate 67 is removed from the center case 61 and juxtaposed to the side.

  The main members constituting the indoor unlocking mechanism are a pair of upper and lower retractors 68 and 69 that are connected to the upper and lower auxiliary latches 43 and 44 and are moved up and down in conjunction with the push-down operation of the push handle 30, respectively. A retractor cam 71 that engages between the retractors 68 and 69 and rotates in conjunction with the raising and lowering of the upper and lower retractors 68 and 69 is attached coaxially with the retractor cam 71 and is large to rotate integrally with the retractor cam 71. A gear 72, a small gear 73 that meshes with the large gear 72, an unlocking hub 24 that is coaxially attached to the small gear 73 and unlocks the case lock 20, and a switching plate that moves up and down in conjunction with the rotation of the unlocking hub 24. 74, and so on. Hereinafter, these members will be described in detail.

(Retractor)
Each of the upper and lower retractors 68 and 69 has a frame-like movable member having a thickness that fits substantially half on the handle side of the center case partition plate 65 and a width that fits substantially within the inner width of the center case 61. It is. As shown in FIG. 6, the upper retractor 68 has a substantially portal-shaped rod coupling portion 681 at the upper portion thereof, and the rod coupling portion 681 is abutted against the upper wall of the center case 61 so as to be centered. The case 61 is accommodated in a substantially upper half portion. A substantially cylindrical rod connecting piece 411 having a female screw hole is attached to the rod connecting portion 681 with the female screw hole facing upward. The rod connecting piece 411 protrudes above the center case 61 through a through hole 613 formed in the upper wall of the center case 61, and the lower end male thread portion of the upper rod 41 is screwed to the protruding portion.

  Further, the lower retractor 69 has a substantially portal-shaped rod connecting portion 691 at the lower portion thereof, and the rod connecting portion 691 is abutted against the lower wall of the center case 61 so that the center case 61 is abbreviated. Housed in the lower half. At this time, the upper horizontal beam 692 of the lower retractor 69 is placed on the upper surface of the arm protrusion 36, and the upper horizontal beam 692 is lifted by pushing up the arm protrusion 36. A substantially cylindrical rod connecting piece 421 having a female screw hole is attached to the rod connecting portion 691 with the female screw hole facing downward. The rod connecting piece 421 protrudes below the center case 61 through a through hole 614 formed in the lower wall of the center case 61, and the upper end male thread portion of the lower rod 42 is screwed to the protruding portion.

  A cam engagement portion 683 extends downward on the left side of the upper retractor 68 when viewed from the wing 10 side. A cam engagement portion 693 is also extended upward on the right side of the lower retractor 69 as viewed from the wing 10 side. Inside these cam engagement portions 683 and 693 (on the longitudinal center axis side of the center case 61), cam arm engagement recesses 684 and 694 that open in a substantially U-shape when viewed from the front face each other so that the openings are opposed to each other. Is formed.

(Retractor cam)
The retractor cam 71 is a movable member having a cam shaft portion 711 having a short cylindrical shape and two cam arms 712 and 713 projecting in the opposite radial direction from the side surface. The cam shaft portion 711 is rotatably inserted into a columnar shaft pin portion 615 (FIGS. 5 and 6) that protrudes from the front wall of the center case 61 toward the wing 10 side. A slit groove 714 cut out in the radial direction is formed on the end surface of the cam shaft portion 711 on the wing 10 side.

  The distal ends of the cam arms 712 and 713 engage with the cam arm engagement recesses 684 and 694 of the upper and lower retractors 68 and 69, respectively. The distal ends of the cam arms 712 and 713 are formed in an arc shape when viewed from the front so that the cam arms can be smoothly rotated in the cam arm engaging recesses 684 and 694, and the necks thereof are slightly narrowed. When the retractor cam 71 is rotated about the cam shaft portion 711 several tens of degrees, the upper and lower retractors 68 and 69 engaged with the distal ends of the cam arms 712 and 713 are moved along the inner surface of the center case 61. , They will move up and down in opposite directions.

  A spring accommodating hole 695 that opens upward is formed on the left shoulder of the lower retractor 69 when viewed from the wing 10 side. A compression coil spring 696 is inserted therein, and the upper end of the compression coil spring 696 is pressed against the cam engagement portion 683 of the upper retractor 68 so that the upper and lower retractors 68 and 69 always expand the distance between them. That is, the rods 41 and 42 of the auxiliary latch are biased in the direction of pushing up and down.

(Switching plate)
A switching plate 74 is attached to the wing 10 side of the retractor cam 71 so as to overlap the wing 10 side of the center case partition plate 65. The switching plate 74 is a movable member made of a thin plate having a width that fits substantially within the inner width of the center case 61. When the unlocking hub 24 rotates, it moves up and down in conjunction with its operation. The detailed configuration and operation of the switching plate 74 will be described later.

(Gear / Unlock hub)
On the wing 10 side of the retractor cam 71, a large gear 72 is coaxially attached to the retractor cam 71 with a center case partition plate 65 and a switching plate 74 interposed therebetween. An end of the shaft portion 721 of the large gear 72 on the wing 10 side is inserted into a bearing hole 671 formed in the center case cover plate 67. The end of the shaft portion 721 of the large gear 72 on the handle side is inserted into a vertically long circular free hole 741 formed in the switching plate 74 and a circular through hole 651 formed in the center case partition plate 65, Engaging protrusions 722 projecting at two opposing positions sandwiching the axis of the end are engaged with the slit 714 of the retractor cam 71. Thereby, the large gear 72 is held so as to rotate by the same angle integrally with the retractor cam 71.

  A small gear 73 is attached on the upper side of the large gear 72 so as to mesh with the large gear 72 in the same plane. The small gear 73 has a shaft portion 731 having a short cylindrical shape, and the shaft portion 731 is inserted in the vicinity of the end portion on the handle side of the unlocking hub 24 so as to rotate around the unlocking hub 24. Is done. On the inner side of the shaft portion 731 of the small gear 73, small projections 732 having a substantially triangular shape in front view are provided to project at two opposite positions sandwiching the shaft center.

  The unlocking hub 24 has an elongated substantially cylindrical main shaft portion 241, and an intermediate portion of the main shaft portion 241 is inserted into an unlocking hub insertion hole 672 formed in the center case cover plate 67 and is rotatable. Retained. The tip (end on the wing 10 side) of the unlocking hub 24 is formed in a cross-shaped cross-section by cutting off four peripheral surfaces, and the cross-shaped portion is inserted into the indoor side opening of the case lock 20, The lock 20 is engaged with a driven mechanism.

  At the end of the unlocking hub 24 on the handle side, a small-diameter shaft pin portion 242 protrudes, and this shaft pin portion 242 is inserted into a bearing hole formed in the center case partition plate 65. Yes. A small gear engaging portion 243 having a single letter cross section is formed in a portion continuous with the shaft pin portion 242 by cutting away two opposed portions of the circumferential surface in parallel with each other. The small gear 73 is inserted outside the small gear engaging portion 243, and the small protrusions 732 of the small gear 73 interfere with the two opposing surfaces of the small gear engaging portion 243 as shown in FIG. The unlocking hub 24 and the small gear 73 rotate in conjunction with each other.

(Switching cam / Switching plate)
A switching cam 244 is formed in the main body shaft portion 241 of the unlocking hub 24 at a position overlapping the wing 10 side of the small gear 73. The switching cam 244 is a thin disk-shaped portion projecting in the radial direction of the unlocking hub 24 and is formed integrally with the main body shaft portion 241 of the unlocking hub 24. As shown by an imaginary line in FIG. 7, a switching cam engagement portion 245 is formed at a position near the upper right of the switching cam 244 when viewed from the wing 10 side, and the periphery of the switching cam 244 is cut out in a substantially fan shape. ing. The lower edge of the switching cam engagement portion 245 is in contact with the switching plate operating pin 742 projecting from the switching plate 74 from below. The switching plate operating pin 742 is a small columnar member, and is fixed so as to protrude toward the wing 10 side in the vicinity of the upper right when the switching plate 74 is viewed from the wing 10 side. When the unlocking hub 24 rotates, the switching cam 244 pushes down the switching plate operating pin 742 and lowers the switching plate 74.

  A torsion coil spring 743 is engaged with the switching plate operating pin 742. The torsion coil spring 743 has one leg tip abutting against the inner surface of the side wall of the center case 61, and the bent portion 744 formed on the other leg tip is locked to the side surface of the switching plate actuating pin 742. The pins 742 are urged so as to be positioned lightly and moderately at their raised and lowered positions.

  The switching plate 74 is accommodated by being overlapped on the wing 10 side of the center case partition plate 65 so that the upper portion thereof extends in the vicinity of the unlocking hub 24 and the lower portion thereof extends in the vicinity of the rod connecting portion 691 of the lower retractor 69. . A U-shaped cutout portion 745 for avoiding interference with the unlocking hub 24 and the small gear 73 is formed on the upper portion of the switching plate 74, and the shaft portion 721 of the large gear 72 is formed in the middle portion. A vertically oblong free hole 741 is formed to avoid interference. Further, a vertically long rectangular window hole 746 is formed in the lower portion of the switching plate 74, and is provided on the inner side of the lever unlocking bar 53 and the lower horizontal rail 69 of the lower retractor 69. The push-up protrusion 697 is inserted. A switching bar 52 is fixed near the lower end of the switching plate 74. The switching bar 52 is a round bar-like member, extends through the wing 10 to the outdoor side, and has its tip facing the inside of the handle seat 51 on the outdoor door-end side.

(Unlocking operation from the indoor side)
A series of operations at the time of unlocking by the indoor unlocking mechanism configured with the above-described members as the center will be described with reference to FIGS.

  First, by pushing down the push handle 30 (white arrow a), the arm protrusion 36 is pushed upward (white arrow b). Then, the entire lower retractor 69 on which the upper horizontal rail 692 is placed on the upper surface of the arm protrusion 36 is lifted by the same height H as the pushed-up amount H of the arm protrusion 36 (white arrow c). At this time, the lower rod 42 connected to the rod connecting portion 681 of the lower retractor 69 also rises together (white arrow d), and the lower auxiliary latch 44 is released (not shown).

  When the lower retractor 69 is pushed up, the retractor cam 71 having the cam arm 713 engaged with the lower retractor 69 rotates counterclockwise as viewed from the wing 10 side (white arrow e). The opposite cam arm 712 pulls the upper retractor 68 down, and the entire upper retractor 68 is lowered by the same height H as the lower retractor 69 is lifted (white arrow f). At this time, the upper rod 41 connected to the rod connecting portion 681 of the upper retractor 68 is also lowered together (white arrow g), and the upper auxiliary latch 43 is released (not shown).

  Further, as the retractor cam 71 rotates, the large gear 72 engaged with the wing 10 side rotates by the same angle in the same direction as the retractor cam 71 (white arrow j). The small gear 73 meshed with the large gear 72 rotates about 90 degrees in the direction opposite to the large gear 72 (clockwise as viewed from the wing 10 side). At this time, the two small projections 732 formed on the inner side of the shaft portion of the small gear 73 push the small gear engaging portion 243 of the unlocking hub 24 to move the small gear engaging portion 243 from the horizontal direction to the vertical direction. Rotate to the point where In this way, the unlocking hub 24 rotates about 90 degrees in the same direction as the small gear 73 (white arrow k), and the tip cross moves the driven mechanism in the case lock 20 to the unlocking side, thereby dead bolts. 21 is immersed and the case lock 20 is unlocked.

  From the push-down operation of the push handle 30 to this point, it operates at once without any time lag. The wing 10 from which the case lock 20 and the upper and lower auxiliary latches 43 and 44 are released is opened as it is by the force pushing the push handle 30. When the wing 10 is opened or the opened wing 10 is closed again, and the force pushing the push handle 30 disappears, the upper retractor 68 and the lower retractor 69 are mutually engaged by the repulsive force of the compression coil spring 696. It is pushed back away.

  By the above-described unlocking / opening operation, the switching cam 244 is also rotated integrally with the unlocking hub 24 (white arrow m), and the switching cam engaging portion 245 cut out in a substantially fan shape is the switching plate operating pin. Press 742 down. As a result, the switching plate 74 descends (white arrow n), and the switching bar 52 fixed to the lower portion of the switching plate 74 also translates downward while maintaining the horizontal posture (white arrow p). The lowering operation of the switching plate 74 and the switching bar 52 is not involved in the unlocking / opening operation from the indoor side, but with the design intention that this operation is also used for unlocking from the outdoor side, It is also incidentally generated at the time of unlocking. This will be described again in the description of the operation of the unlocking mechanism from the outdoor side described later.

[Outdoor unlocking mechanism]
11, 12, and 15 to 17 are views showing the main part of the outdoor side unlocking mechanism provided inside the handle seat 51 on the outdoor door-end side in the switchgear shown in FIGS. 1 to 4. It is. FIGS. 11 and 12 show the closed state, and FIGS. 15 to 17 show the operating states when the unlocking / opening operation is performed from the outdoor side. FIGS. 13, 14, 18, and 19 show the operating states of the unlocking mechanism on the indoor side linked to the unlocking / opening operation from the outdoor side, respectively.

(Handle seat)
The handle door 51 on the outdoor door-end side is incorporated in a lever case 81 whose front shape is a vertically long rounded rectangle. The lever case 81 is a substantially box-shaped member opened on the back side (wing 10 side). On the back surface of the front wall of the lever case 81, cylindrical leg mounting portions 811 having female screw holes are provided at two upper and lower portions, and the mounting legs 54 and 55 are fastened from the back side. The upper and lower mounting legs 54 and 55 are disposed so as to penetrate the wing 10, and the lower fixing screw 64 on the lower side of the handle seat 33 on the indoor door-end side is fastened to the other end of the upper mounting leg 54. A fixing screw 56 is fastened to the other end of the side mounting leg 55 from the indoor side of the wing 10.

  A lever mounting portion 812 that swells in a truncated cone shape is provided at the approximate center of the lever case 81. A circular lever mounting hole 813 is formed in the center of the lever mounting portion 812, and a cylindrical recess 814 having a diameter slightly larger than the lever mounting hole 813 is formed on the back surface (wing 10 side) thereof. The lever handle 50 is attached via a lever hub 82 incorporated in the back surface of the lever attachment portion 812, and is restrained in a horizontal posture when locked, and can swing freely in a push-down direction when unlocked.

  The lever hub 82 has a substantially cylindrical lever shaft portion 821, and an end portion of the lever shaft portion 821 on the wing 10 side is inserted into the wing 10, while an end portion of the lever shaft portion 821 on the handle side is inserted. The lever case 81 is rotatably accommodated in a cylindrical recess 814. The base portion of the lever handle 50 and the lever hub 82 are connected via a lever square core 822 inserted into a square hole formed in each axis, and rotate integrally. The lever hub 82 serves as a support shaft for holding the lever handle 50.

  The lever shaft portion 821 has at least two protrusions (three in the illustrated embodiment) protruding outward in the radial direction. One of the protrusions is a lever stopper engaging protrusion 823 that protrudes downward in a locked state where the lever handle 50 is held sideways. The other protrusion is a retractor engagement protrusion 824 that protrudes in the direction opposite to the handle of the lever handle 50. On the rear surface of the front wall of the lever case 81, a pin-shaped rotation range restricting projection 815 that abuts on one of the two engaging projections 823 and 824 according to the rotation position of the lever hub 82 is provided. ing.

  The main members constituting the outdoor side unlocking mechanism are the lever hub 82, the lever stopper 83 that restrains the rotation of the lever hub 82, the lever stopper lifting plate 84 that lifts and lowers the lever stopper 83, and the elevator that moves up and down by operating the lever hub 82. These are an outer retractor 85, a lever unlocking bar 53 for transmitting the lifting / lowering operation of the outdoor retractor 85 to the indoor side, and the like. Hereinafter, these members will be described in detail.

  A lever case cover plate 86 serving as a lid for the outdoor side unlocking mechanism is attached to the lever wing 81 on the most wing 10 side. FIG. 12 also shows a state where the lever case cover plate 86 is removed from the lever case 81 and juxtaposed to the side.

(Lever stopper)
The lever stopper 83 is a frame-shaped movable member that fits substantially within the thickness and inner width of the lever case 81. The lever stopper 83 is incorporated in the substantially lower half of the lever case 81 so as to surround the lower mounting leg 54, and moves up and down along a certain range along the inner surface of the lever case 81. A compression coil spring 831 is interposed between the lower left corner of the lever stopper 83 viewed from the wing 10 side and the side wall of the lever case 81, and this compression coil spring 831 gives a sense of moderation to the lifting and lowering operation of the lever stopper 83. To do.

  A lever hub engaging recess 832 that opens upward is formed on the upper edge of the lever stopper 83. As shown in FIG. 12, when the lever stopper 83 is in the raised position, the lever hub engaging recess 832 engages with the lever stopper engaging protrusion 823 to restrain the rotation of the lever hub 82. Disable operation. As shown in FIGS. 15 and 16, when the lever stopper 83 is lowered, the lever hub engaging recess 832 is disengaged from the lever stopper engaging protrusion 823, the lever hub 82 is released, and the lever handle 50 is operated. Is possible.

(Lever stopper lifting plate)
The lever stopper lifting plate 84 connected to the upper portion of the lever stopper 83 directly raises and lowers the lever stopper 73. The lever-stopper elevating plate 84 is a movable member made of a thin plate that is slightly narrower than the outdoor retractor 85, and overlaps the lever case cover plate 86 on the wing 10 side of the outdoor retractor 85 and the lever stopper 83. Is incorporated.

  The lever-stopper elevating plate 84 has a shape in which a lower portion on one side extends to the lower half of the lever case 81 so as to dodge the lever hub 82 from the upper half of the lever case 81, and the lower end of the extended portion. The vicinity is connected to the upper part on one side of the lever stopper 83 via a connecting pin 841. A guide pin 842 similar to the connection pin is also attached to the side of the connection pin 841 in the lever stopper 83 with the lever hub engagement recess 832 interposed therebetween. The connecting pin 841 and the guide pin 842 are loosely inserted into the elevating guide slots 861 formed in the lever case cover plate 86 to guide the elevating of the lever stopper 83.

  In order to avoid interference with the upper mounting leg 54, a vertically oblong free hole 843 is formed in the upper part of the lever topper lifting plate 84. A switching bar 52 extending from the indoor side is fitted in the vicinity of the upper end of the lever topper lifting plate 84. When the indoor-side switching plate 74 is lowered, the outdoor-side lever stopper lifting plate 84 is also lowered integrally through the switching bar 52.

(Outdoor retractor)
The outdoor side retractor 85 is a movable member that fits substantially within the thickness and inner width of the lever case 81. The outdoor-side retractor 85 is incorporated in the substantially upper half of the lever case 81 in a state where the switching bar 52 and the upper mounting leg 54 are loosely inserted into a vertically long oval-shaped free hole 851 formed near the center thereof. A certain range is raised and lowered along the inner surface of the lever case 81. The lower edge portion of the outdoor side retractor 85 is formed in a shape along the upper surfaces of the lever shaft portion 821 and the retractor engagement protrusion 824 in the lever hub 82, and is placed on the upper surfaces thereof.

  As shown in FIGS. 15 and 16, when the lever handle 83 is lowered and the lever handle engaging recess 832 is disengaged from the lever stopper engaging projection 823, when the lever handle 50 is pushed down, the entire lever hub 82 is interlocked therewith. Rotates several tens of degrees, and the retractor engaging protrusion 824 pushes up the lower edge of the outdoor retractor 85.

  Between the upper part of the outdoor side retractor 85 and the upper part of the lever case 81, a pair of left and right spring accommodating holes 852 and 816 are provided, and a compression coil spring 853 is inserted. These compression coil springs 853 always urge the outdoor retractor 85 downward and press it against the lever hub 82, and give a biasing force in the return direction to the pressing operation of the lever handle 50.

  Near the upper portion of the outdoor retractor 85, a lever unlocking bar 53 extending toward the indoor handle seat 33 is fixed, and this moves up and down integrally with the outdoor retractor 85. The lever unlocking bar 53 is a round bar-like member, extends through the wing 10 to the indoor side, and has a push-up protrusion 697 whose tip projects from the middle horizontal rail of the lower retractor 69 on the indoor side. It is positioned so that it may contact | abut on the lower surface of this.

(Unlocking operation from outside)
A series of operations at the time of unlocking by the outdoor-side unlocking mechanism configured around the above-described members will be described with reference to FIGS. In addition, about the operation | movement (operation | movement with the same direction and magnitude | size) common to the operation | movement at the time of unlocking from the indoor side mentioned above, a common code | symbol is attached | subjected to the white arrow which shows it.

  The unlocking / opening operation from the outdoor side starts from an operation (white arrow q) in which the key 26 is inserted into the cylinder lock 25 and rotated from the outdoor side. By this operation, the driven mechanism in the case lock 20 moves to the unlocking side, and the dead bolt 21 is immersed. At this time, the unlocking hub 24 engaged with the indoor side of the case lock 20 also rotates to the unlocking side (white arrow k), and the switching cam 244 also rotates together with this (white arrow m). The switching cam engaging portion 245 pushes down the switching plate operating pin 742. As a result, the switching plate 74 descends (white arrow n), and the switching bar 52 fixed to the lower portion of the switching plate 74 also translates downward while maintaining the horizontal posture (white arrow p).

  As shown in FIGS. 13 and 14, when the unlocking hub 24 is rotated (white arrow k), the small gear engaging portion 243 formed on the main body shaft portion 241 of the unlocking hub 24 is used as the unlocking hub 24. Rotate in a direction that does not interfere with the small protrusions 732 of the small gear 73 inserted into 24, and changes from the horizontal direction to the vertical direction. Therefore, at the stage of unlocking the case lock 20 with the key 26 from the outdoor side, the small gear 73 and the large gear 72 remain stationary.

  When the switching bar 52 is pushed down through the unlocking mechanism on the indoor side, this operation passes through the wing 10 and is linked to the outdoor side, and the lever stopper lifting plate 84 fitted to the switching bar 52 descends (white) Arrow r). Further, the lever stopper 83 connected to the lever stopper lifting plate 84 is also lowered by the same amount (white arrow s). Then, the restraint of the lever hub 82 by the lever stopper 83 is released, and the lever handle 50 can be operated.

  In this state, when the lever handle 50 is pushed down (white arrow t), the retractor engaging protrusion 824 protruding from the lever hub 82 rotates upward (white arrow u) and pushes up the outdoor retractor 85 (white arrow v). ). In conjunction with this, the lever unlocking bar 53 fixed to the upper part of the outdoor retractor 85 also rises together while maintaining the horizontal posture.

  When the lever unlocking bar 53 is lifted, the tip extending to the indoor side pushes upward the lower surface of the push-up protrusion 697 protruding from the middle horizontal rail of the lower retractor 69 (white arrow w). As a result, the entire lower retractor 69 is lifted (white arrow c), and the lower rod 42 connected to the rod connecting portion 681 of the lower retractor 69 is also raised together (white arrow d). The side auxiliary latch 44 is released (not shown).

  In addition, the retractor cam 71 engaged with the lower retractor 69 rotates counterclockwise as viewed from the wing 10 side (white arrow e), and the upper retractor cam 71 is engaged with the opposite side of the retractor cam 71. The retractor 68 is lowered by the same amount (white arrow f). Accordingly, the upper rod 41 connected to the rod connecting portion 681 of the upper retractor 68 is also lowered together (white arrow g), and the upper auxiliary latch 43 is released (not shown).

  From the push-down operation of the lever handle 50 to this point, it operates at once without any time lag. The wing 10 from which the case lock 20 and the upper and lower auxiliary latches 43 and 44 are released is opened to the outdoor side by a force pulling the lever handle 50.

  Incidentally, when the retractor cam 71 rotates, the large gear 72 also rotates (white arrow j) and the small gear 73 meshing with it also rotates, but the small gear of the unlocking hub 24 also rotates. Since the engaging portion 243 is already in the vertical direction, the small protrusion 732 of the small gear 73 does not interfere with the small gear engaging portion 243 of the unlocking hub 24.

  When the wing 10 is opened or the opened wing 10 is closed again and the force pushing the lever handle 50 is lost, the upper retractor 68 and the lower retractor 69 are separated from each other by the repulsive force of the compression coil spring. Pushed back in the direction. Thereby, the retractor cam 71 is also rotated in the opposite direction (clockwise as viewed from the wing 10 side), and the large gear 72 and the small gear 73 are also rotated in the opposite direction in conjunction with this.

  However, at this stage, since the small protrusion 732 of the small gear 73 does not interfere with the small gear engaging portion 243 of the unlocking hub 24, the unlocking hub 24 does not rotate, and the small gear engaging portion 243 is oriented vertically. It remains. Therefore, the switching plate 74 is also left in the lowered position. In this state, since the operation of the lever handle 50 is not yet restricted, even if the door is closed, once the lever handle 50 is pushed down again, the auxiliary latches 43 and 44 are released and the door can be opened. If it is during a power failure, the case lock 20 does not return to the locked state, and is kept in a state where entry from the outdoor side is possible.

  In normal operation (when energized), after a certain time (for example, about several tens of seconds) has passed after the wing 10 is closed, the case lock 20 is re-locked by the operation of the electric lock, and the unlocking hub 24 is brought into the locked position. Return toward. At this time, the switching cam 244 formed on the unlocking hub 24 lifts the switching plate operating pin 742 and raises the switching plate 74. Along with this, the lever stopper lifting plate 84 and the lever stopper 83 on the outdoor side are raised, the lever hub 82 is restrained, and the lever handle 50 cannot be operated.

  As described above, the emergency door opening and closing device according to the present invention is rational in that the unlocking / opening operation from the indoor side and the unlocking / opening operation from the outdoor side share the main components. It is comprised so that it may connect to. Moreover, the unlocking / opening operation is very simple, from the indoor side, only a single action of pushing down the push handle 30, and from the outdoor side, the key operation of the cylinder lock 25 and the double pushing down of the lever handle 50 are performed.・ Action is enough. Since the case lock 20 uses a motor-locking / unlocking type main locking electric lock, the door can be opened even during a power failure. With such a configuration, the locked / unlocked state can be flexibly managed according to the use and usage of the facility, which is advantageous in terms of facility maintenance and operation.

  The main parts shown in the embodiment are designed and manufactured rationally and economically, and operate reliably and smoothly over the entire locking / unlocking operation. Even if the wing opening direction is reversed, most parts can be used as they are.

  In the above description, the double-open type emergency door has been described. However, in the case of a single-open type emergency door, a strike can be provided on the vertical frame of the door frame to perform the same as described above. it can. In addition, the present invention can be carried out by appropriately modifying the detailed shapes of the components, the mutual engagement state, the positional relationship, and the like without departing from the basic configuration of the locking / unlocking mechanism described above. .

  The emergency door opening and closing device of the present invention can be widely applied to general doorways.

10 Right wing 11 Left wing 13 Upper frame 15 Lower frame 20 Case lock 21 Dead bolt (door bolt)
22 Strike 23 Operation shaft 24 Unlocking hub 25 Cylinder lock 26 Key 30 Push handle 33 Indoor door side handle seat 34 Indoor suspension side handle seat 41 Upper rod 42 Lower rod 43 Upper auxiliary latch 44 Lower side Auxiliary latch 50 Lever handle (grip member)
51 Outdoor door side handle seat 52 Switching bar 53 Lever unlocking bar 61 Center case 65 Center case partition plate 67 Center case cover plate 68 Upper retractor 69 Lower retractor 71 Retractor cam 72 Large gear 73 Small gear 74 Switching plate 81 Lever case 82 Lever hub 83 Lever topper 84 Lever topper lifting plate 85 Outdoor retractor 86 Lever case cover plate

Claims (5)

A wing that is opened toward the outdoor side, a push handle that is swingably mounted in a push-down direction via a handle seat provided on each of the indoor suspension base side and the indoor door end side of the wing, and the wing A pair of upper and lower auxiliary latches respectively provided at the tip of a rod extending upward and downward from a handle seat on the indoor door-end side, Comprising
The door bolt engages with a vertical frame of the door frame in the case of a single-open emergency door, and strikes provided on the door end side of the counterpart wing in the case of a double-open emergency door, and the upper and lower The auxiliary latches engage with the upper and lower frames of the door frame, respectively, so that the wing is held in the closed state,
When the push handle is pushed down, the door bolt is immersed in the case lock and disengaged from the strike, and the rods are drawn toward the handle seat side on the indoor door-end side to In the emergency door opening and closing device in which the auxiliary latch is disengaged and the wing can be opened,
The case lock is an electric lock in which the door bolt is electrically controlled when energized and the opened wing is closed again and the door bolt protrudes to return to the locked state when a predetermined time has elapsed. ,
An unlocking hub is engaged with the case lock from the indoor side, and the unlocking hub rotates in conjunction with the push-down operation of the push handle, so that the door bolt is mechanically immersed regardless of the energized state. An opening / closing device for an emergency door, wherein the case lock is unlocked. In the emergency door opening and closing device according to claim 1,
By pushing down the push handle, regardless of the energized state, the upper and lower rods connected to the auxiliary latch are mechanically pulled toward the handle seat side on the indoor door-end side to release the auxiliary latch. An emergency door opening and closing device. In the emergency door opening and closing device according to claim 1 or 2,
A cylinder lock is attached to the outdoor side of the wing, the cylinder lock engages the case lock from the outdoor side, and the door bolt is mechanically immersed regardless of the energized state by the key operation of the cylinder lock. An emergency door opening and closing device, wherein the lock is unlocked. In the emergency door opening and closing device according to claim 3,
A lever handle or a knob or other handle member equivalent thereto is attached to the outdoor side of the wing, and the handle member is restrained so as not to be operated when locked,
In conjunction with the key operation of the cylinder lock, the restraint of the handle member is released,
By operating the handle member, the upper and lower rods connected to the auxiliary latch are mechanically pulled toward the handle seat side on the indoor door-end side to release the auxiliary latch regardless of the energized state. An emergency door opening and closing device. In the emergency door opening and closing device according to claim 4,
A handle seat on the indoor door end side is connected to the rods of the upper and lower auxiliary latches, and is engaged between the pair of upper and lower retractors that move up and down in conjunction with the push-down operation of the push handle. An indoor unlocking device comprising: a retractor cam that rotates in conjunction with the gear; a gear that transmits the rotation of the retractor cam to the unlocking hub; and a switching plate that moves up and down in conjunction with the rotation of the unlocking hub. While the mechanism is incorporated
A handle seat on the indoor door end side includes a lever hub that rotatably holds a base portion of the handle member, a lever stopper that restrains rotation of the lever hub, a lever stopper lifting plate that lifts and lowers the lever stopper, An outdoor side unlocking mechanism comprising an outdoor side retractor that moves up and down by operation of the lever hub is incorporated,
The switching plate on the indoor side and the lever stopper lifting plate on the outdoor side are connected via a switching bar that penetrates the wing,
When the unlocking hub is rotated by the key operation of the cylinder lock, the switching plate, the lever stopper lifting plate, and the lever stopper are lowered in conjunction with each other, and the restraint of the lever hub is released and the handle member is released. Can be operated,
The outdoor retractor is raised by the operation of the handle member, and a lever unlocking bar attached to the outdoor retractor and extending to the indoor side moves the indoor unlocking mechanism to the unlocking side to assist. An opening / closing device for an emergency door, wherein the latch is released.

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